“If you think it’s expensive to hire a professional to do the job, wait until you hire an amateur” Red Adair

Mark Ray;

Ex-Vaillant Service Engineer

Repairs & Breakdowns

Annual Servicing


Landlord & Tenants

Call 07515-687740  9am-4.30pm

Mon -Fri 8am-9pm (Sat 9am - 1pm)

Need support?

I’ll answer your questions FREE of charge at;


or CALL ME DIRECT ON - 07515-687740 before 8pm

East London

South London

North Kent


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Me... Mark,

Started in the gas industry with British Gas in 1979, left and went walkabout for a while (LA, Perth etc). Returned and set up a small gas repair business. Worked for Calor, Stoves and British Gas. Went on to university, to qualify as a lecturer. Completed C&G Air Conditioning and Refrigeration. Taught at Brixton, before moving on to CORGI, as area inspector for London.

Moved to VAILLANT as a service engineer/technician, and later as a service agent.

Recently moved to Intaplumb, National Construction College (3yrs ago) lecturing in gas engineering and renewable energy.

Got bored, started building websites, and now I’m here working with my closest pals Chris, Mike and Joe below, running vaillantservice.co.uk and megaflo-service.co.uk and still managing to teach.

Contact me anytime: 07515-687740 or mail me at mark@vaillantservice.co.uk

Mr Chris Watkins,

Like me, been in the industry over 30yrs this year. Started life as a plumbing and mechanical services apprentice, and went on to advanced craft and commercial services. Worked for major companies in the industry, on some major projects in central London (too many to list). Absolute genius, and a walking Encyclopedia of information concerning anything containing water and gas.

Maintained MacDonalds chain of food stores, and an expert in unvented pressurised hot and cold water systems.

Qualified lecturer in Mechanical Services, Part G3 water systems, Part P electrical installation, and much more. Currently lectures with me at Intaplumb, as well as doubling up as my partner in megaflo-service.co.uk

Contact Chris anytime: 07516-674787 or E-mail mark-and-chris@megaflo-service.co.uk

Mike Rogers,

Other than teaching qualifications, he’s more qualified than me! But more importantly, he knows this job inside out. Mike carries out the majority of all installations (we DON’T sub-contract any of our work). Examples can be seen on the Boiler Installation page.

Has an extremely high standard of work, and understands the importance of customer relations, and communication.

Fully conversant with modern design and technology, and also renewable energy sources, such as Solar Thermal Systems.

For any installation or replacement boiler enquiries:

Contact Mike: 07545-783367 or mail mike@vaillantservice.co.uk


Well, there’s a very fine line between pure genius, and insanity... I’m saying no more!

Powerflushing genius, and installation engineer of unbelievable standards

Here you can see who and what we are.

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